Some end value condition derived by variational method in accordance with the least energy loss principle and their mechanical background are also dealt with.
同时从能量最小原理出发，用变分的方法推导出几种端值条件，说明它们的力学背景。
Applying the principle of minimum total potential energy, the spline subdomain method of folded plate structures is derived.
应用最小势能原理，建立了折板结构分析的样条子域法。
Energy variation principle is a good method to solve the shear lag effect.
能量变分法是求解剪力滞问题的一个有效方法。
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